mtx_destroy
===========

Documentation:

Mutexes (libc).

Gnulib module: mtx

Portability problems fixed by Gnulib:

  * This function is missing on many platforms: glibc 2.27, Mac OS X 10.5, FreeBSD 9.3, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, Solaris 11.3, Cygwin, mingw, MSVC 14, Android 9.0.

Portability problems not fixed by Gnulib: